Controller.



No. 839,250. PATENTBD DEC. 25, 1906. T. VON ZWEIGBBRGK.

CONTROLLER.

APPLIOATION FILED MAY 21,1906.

4 SHEETSSHEET 1.

AT TYS N0. 83.9,25Q. PATENTED DEC. 25, 1906.

' 1. VON ZWBIGBERGK.

CONTROLLER.

APPLICATION FILED IAY 21. 190 6.

4 SHEETS-SHEET 2.

TNESSES. i H INVENTOR No. 839,250. PATENTED DEC. 25, 1906. T. VON ZWEIGBERGK.

CONTROLLER.

APPLIOATION FILED MAY 21. 1906.

' 4 sums-sum a.

I my, 5, 05mm WXW 73 fi AT TYS.

No. 839,250. PATENTED DEC. 25, 1906.

. T. VON ZWEIGBEEGK.

CONTROLLER.- APPLIOATION IILBD In 21. 1906.

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J%WW-ZQ THORSTEN VON ZWEIGBERGK, OF'PRESTON, ENGLAND.

CONTROLLER.

Specification of Letters Patent.

Patented Dec. 25, 1906.

Application filed May 21,1906. Serial No. 317.869.

To all whom it may concern:

Be it known that I, THORSTEN VON ZwnrenERGK, a citizen of the United States, residing at Preston, in the county of Lancaster,

-which the more important. are above men tioned, are hereinafter more fully described,

I tion on the line England, have invented a certain newand useful Improvement in Controllers, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

The object of this invention is to provide a governing and reversing controller in a'very simple and compact form.

My invention may be embodied in a crane controller wherein the controlling-barrel is horizontally located on top of the box containing the resistance. In such controller it is important to have the barrel short to prevent excessive width of the structure. In accomplishing this I place the governingsegments on one side of the barrel and the reversing-segments on the opposite side of the same barrel, appropriate contact-fingers be- 1ng provided. I provide a double set of contact-fingers for the governing-segments and a single blow-out device for the two sets. The arrangement of the contact-fingers and blow-out to allow access to the interior and the arrangement of the operating-lever also contribute to the efficiency of my controller. I The various features of the invention, of

and definitely summarized in the claims.

tion.

Figure 1 is a sectional front elevation of the controller' Fig. 2 is a sectional side view at right angles to Fig. 1. Fig. 3 is a partial central Section parallel with Fig. 2. Fig. 4 is ,a -partial front view sectioned through the o crating-lever substantially on the line 44 of Fig. 3. Fig. 5 is a detail in cross-sec- 5 5 of Fig. 3. spective view of the controller mounted on a resistance-box, the c'over of the controller being removed. Fig. 7 is a diagram illustrat-' ing the circuits.

As shown in Fig. 6, there is preferably ahex-A, which forms .the support for the controller and may contain the resistance. The controller-frame, composed of a horizontal member -B and the vertical frame-plates and 0, rest on the box and are secured thereto. The frame member B extends down into The drawings. clearly disclose my inven- Fig. 6 is a per- 20f a contact portion g,

a proper adjustment.

wood E, on which are mounted brackets F which carry the contact-fingers G G".

, The controller-barrel is formed by a cylinder of wood H, mounted at its ends in metallic caps J, which have trunnions j, extending into bearings in the pates C C. On the trunnion y' is secured a lever K, by which the barrel may be oscillated to operate the controller. Mounted on the upper part of the barrel are the contact-segments N, which are adapted to cooperate with the contact-fingers G and G, some of the segments cooper ating with contact-fingers of both sets. The particular arrangement of the contact-segments will be hereinafter explained.

On the under portion. of the barrel H are secured the segments of the reversing-switch, of which two, p and p appear in Fig. 1. The particular arrangement of these segments is shown in the diagram. For the present it is sufficient to say that they are curved plates desired, and that cooperating with the seg ments are the contact-fingers Q, carried by brackets S, which are mounted on the wooden block 0, carried by the plate 5, above referred to.

It will be seen from the above description that a very compact controller is produced. By locating the governing-segments on one half of the controller-barrel and placing the reversing-segments on the op osite half the barrelneed be onlysubstantia ly half as long as with the reversing-segments beyond the governing-segments.

The support for the contact fingers by brackets mounted on cross-clocks of wood secured to frame members, as shown, is very simple and efficient. These finger-brackets F may besecured to the Wooden blocks by screws, as shown. wardly-extendin earsf, in which are pivoted the gers G an G. These fingers consist carried by the spring 9, and a pivotedsupporting portion 9 to which the spring is secured. Asst-screw g screwing throngh the contact portion and bearingv against the supporting portion, forms The supporting por- The brackets have up-' tion 9 extends rearward from its pivot in the form of a tail 9*, which is adapted to project through a notch in a latch-lever I, which is fpivotedbetween the ears f. When this latch- 1. lever is in' the position shown in Figs. 1- and 6,

. it engages the tail g1 and holds the finger in such position that the contact portion may bear upon the segments. A spring member 9", carried by the finger in this position, bears on the bracket F, insuring a good electric contact." The tail 9? extends downward slightly near its end,so as to catch behind the. web of the latch-lever I, thus preventing accidental displacement. ,If, however, the body of the finger is pressed downward slightly, the latchlever may be'turned awayto free the tail and '2 f, as shown, which are a'dapted to receiverior of the box A.

the entire finger swung upwardly on its'pivot to allow access to the. arrel of the controller. These brackets F havetubular binding-posts the leads M and M,.coming up from the intebetween these plates are coils of wire t the iw ibhever way t contact-fingers The;s tructure 'of'the bloweout s braced "by successive coils Winding-jin opposite directions. Surrounding. the coils are the metallic tubular shields t. The terminals of the windings are connected with plates t on the ends of the blow-out, which plates have fin-' gersyt, adapted to extend between a pair of contact-springs 1., carried by one of the wooden blocks E and connected with a pair ofcontact-fingers of the reversing-switch. v

The operatipn of the blow-out, as explained inmy patent referred to, is to stretch the spark around the metallic shield i and thus blow it .out. As the segments engaging the fingers G andnG may draw away from thie fingers in either direction, I-extend'the field of the lines of force tofthe opposite sides of the contact-fingers by inserting metallic plates t into the separating-shields F; The lines of force thus pass directly-across. the spark h mentsrnovfe from the l;

V bolts. tftf phssing "through"- the shields and through di's'tantfs'leeves' t",jbetween" them. Nutsjt" on the bolts hold the structure together and by. occupying pockets 0 on' the in.

'- .ner sideof'theframemembers C C (see more particularly Fig, srform a support for, the blew-out. At the sametime they allow the blow-out to be lifted'en'txrely'out of the frame whent'he controller-cover is removed, or the 6 blow-out may be swung upward, the nuts on one .end forming a pivot. When the blowout is thus out of the way, the contact-fingers G G maybe swung pward on their pivots, as heretofore explained.

The operating-lever K, by which the barrel is oscillated, has'at its upper end a spadehandle k, adapted to be conveniently grasped by the operator; On either side ofthis handle are thumb-levers U U, pivoted inthe yoke-frame 7c of the handle. '.The thumblever U extendsbelow its pivot and there has a fork engaging the end of a bell-crank U the other arm of which occupies a notch in a bolt V, slidable in the handle-frame k. This bolt is adapted to engage notches c 0?, formed on the upper edge of the frame-plate C, and thus lock the controller in any desired position. A spring Y,surrounding a rod Y, connected with the finger U above its pivot, tends to push that lever outward, and. thus press the bolt downward. Tin other end'of the rod Y is connected with the thumb-lever prevent the displacement of the lever in 50 either direction: The active notches c preferably have -that wall which is toward the I notch c inclined, so that the lever may be drawn, from any active position to the off position at once without withdrawing the bolt V, thus allowing the current tobe' shut off very quickly, if desired.

'Tliejpeculiar posltionlng of the contactsegments-will be best understood from the diagramand the description of the operailo tion. In this diagram the governing-segments are indicated by the reference charac 'ters n. to m respectively, and the reversingsegments by p -to pfi respectively. The governing segments are in two sets, which are duplicates of each other, one, set being designatedwith odd exponents and the other fwith Ewen, ZexpOnents. gThel controller, as shown, has six active notches in "each 'dir'ec- Y tion, one setl being' for-l- 'ahe'adandtthe other set "for .'reverse.

description we will consider the left-han half of the diagram as for the ahead'position and the right-handhalf' as-- for the reverse. Reference-numerals designate the-circuits, as well as the s ecific contact+fingers-' of the its shown, the two setsof contact-fingers In ithe followin engagement with the segment a From ment n, to the segment it being remembered that the movement from gether by such plates: From the main line circuit now flows through the motor and sections R and R movement to the second position has there- 'n, to the segment n,

G and Gare a distance apart substantially equal to the distance between the off position and the first active position, and this distance is" twice that between any of the consecutive positions-Nos. '1 to .6. It thus results that if the fingers G, for example, occupy (relatively to the segments) ahead position No. 1- the fingers G willbe relatively in the positions the fingers G normally occupy, while for any ofthe positions Nos. 2 to 6 of-the'fingers G the corresponding fingers of the G set will be two positions behind.

- Assuming that the controller is in ahead position No. 1,-the current flows as follows,

off to the first position brings the plates which were in engagement with one set of fingers G into engagement withthe other set G, so that such fingers are connected to- 1 the current flows through the armature and line 2 to the contact-finger 8, resting on the plate 19 to the line 3, which is connected with this contact-finger through the blow-out coil, to the line 4, to the'plate 11 to the line 5, through the field of the motor to theline 6, to the plate 12. From here it flows via the line 7 to the contact-finger 14, which is now in this segment it flows to the contact-finger 13, to the line 20,110 the finger 9. With this finger connects line 21, which'leads to the reslstance. The current continues through the sections of the resistance R R and R to the line 22 to the contact-finger 17 ,to the segment n The contact-finger 18 also engages this segment, and the current continues from this finger via the line 23, through'the sections R R of the resistance, to th return main line 24.

In the second position the contact-fingers 13 and 14 are still in engagement with the plate a andthe contact-fingers 17 and 18 with the segment n". Contact-finger 15'has ceme into engagement with the plate a. The

blow-out coil, as before, to the plate p, to the contact-finger 9, to the line 21, through the of the resistance, to the line 25, tothe contactfinger 15, to the segn", to the contactand through the reto the return-line. The

finger 18, to the line 23, sistance R and R fore cut outthe resistance-section R".

In the third position the finger 13 has cleared the segment n and thefinger 11- has engaged the segment a. The circuit now, flows from the plate p to the finger 9, to the line 21, through the resistance-section R to the line 26, to the finger 11, to the segment and, as before, to the I contact-finger 18 and through the-resistancesections R and R to the return. 7 I

comes into engagement with the segment n wherefore the circuit from the plate 12 extends via the line 20 to the segment n to the segment n, to the finger 12, to the line 28, to

the return 24. As the controller passes from the fifth to the sixth positions the blowout is short-circuited by reason of the finger 8'coming into engagement with the plate 19 In the reverse positions the governing-circuits are identical and the reverse circuits are the same except that the circuits flow through the field in the will be understood from the diagram, the alternate plates 12 p and p p being respectively connected together.

claim 1. The combination with two sets of contact fingers, of a double set of contact-segments, the segments on one side being in the same circumferential plane with the corresponding segments of the other side, whereby said segments may each cooperate with the corresponding fingers independently to close circuits or form a bridge from the fingers of one set to those ofthe other.

2. A controller having a barrel and two sets of contact-segments thereon, the corresponding segmentsbeing in the same circumferential plane, and contactefingers of which two are m such plane, whereby the movement of the barrel may cause an alteration in the circuit by engaging with one of the fingers or by a segment of each set engaging I with two fingers.

3. In a controller, the combination with two sets of contact-fingers, of twosets of contact-segments cooperating therewith and adapted to cut in or out the resistance in the same manner for each set, and a reversingswitch moving concurrently with said segments and adapted to reverse the motor.

4. In a controller, the combination of a duplicate set of governing-segments, a.dou ble set of contact-fingers, resistance connecting with the contact fingers of each set, said:

controller having positions where fingersof both sets engage with the same segment, or engage either segment singly, and thereby cause an alteration in the circui 5. In a controller, the combination .with two sets of contact-fingers, of a controllerbarrel carr g a duplioate set'of segments,

opposite direction, as t ITO respective fingers and to cause in another position segments of one set to engage fin- .gers of the other set and tocause in another position segments of one set to engage fingers of both sets, all such engagements changingthe circuits.

6.;In a controller, a' rotatable barrel, re-

versing-se ments on oneside thereof, and

two sets or governing-segments on the other side thereof, said sets being duplicates combined with suitable cooperating contact-fingers whereby the government may be the same for either direction.

7. In a'controller, the combination of a barrel, reversing-segments secured on one side thereof, segments secured on the opposite side thereof, a set of reversing-fingers and two sets of governing-fingers.

8. In a controller, the combination of a horizontal barrel, reversing-segments secured on the under portion thereof, governing-segments secured on the upper surface thereof, reversing-fingers below the barrel and governing-fingersabove the barrel.

j 9. Ina controller, the combination of a frame having'a depending portion with a horizontal member, reversing fingers insulatingly carried by said member, a pair of" vertical plates carried by said frame, a horizontal barrel j ournaled in said plates, reversing-segments secur d to said barrel on its under side and adapged to cooperate with the reversing-fingers, a duplicate .set of governing-Se ments secured to the upper side of the barre ,and fingers to cooperate with'said governing-segments.

- 10. In acontroller, the combination with two sets of contact-fingers, of a controlling member having two sets of contact-segments,

and a single blow-out device. for both sets.

11. The combination, of a controller-barrel, ,two sets of segments carried thereby,

two sets offingerasome of the segments being adapted to. engage fingers of either set, and a blow-outdevice adapted to blow out the s ark whichever way the segment leaves the ger. I

12., In a controller, the combination of a horizontal barrel, reversing-segments secured on the under ortion thereof, governing-segments secure on the upper. portion thereof, 7 a set of reversingfingerslcarried.below the, barrel, two sets of governing-fingers flabovej the barrel,=and ablow out'de'vice" above the barrel adapted to act for both sets of sparksx Y 13; The combination of a horizontal centroller-barrel, segments on the upper side thereof, pivoted contact-fin ers above the segments adapted to bear-t ereon, and a 'movable -blowoutdevice. above the fingers *and segments.

. 1:4. Thecombination jofzahorizontal" con-I Hating troller-barrel, segments thereon, contact-finpair of exposed terminals mounted on thelow-out (structure, and spring-terminals with which said exposed terminals connect" when the blow-out is in-position, whereby the blow-out may be easily removed.

15. In a controller, the combination of a pivoted contact-finger having a projection, and a latch-lever adapted to en'age such projection to hold the finger in pIace or be turned aside to release the finger.

16. In a controller, the combination of a bracket, a contact-finger pivoted thereto and havin a projecting tail, alatch-lever pivoted to sai bracket and having a shoulder which said tail may enga e.

17. Ina controlIer, the combination of a bracket having a pair of ears, a contact-fin ger pivoted to said ears and having a hooked portion projecting rearwardly from the pivot, av latch-lever pivoted between said ears and having an opening through which such hooked portion may project;

18. In a controller, the combination of a same and each thumb-lever.

20 '"The combination of a controller-barrel, a lever for operating it, a bolt carried by the lever for looking it, a pair of thumblevers, one of which'is connected with said bolt, and a rod connecting a pointon one thumb-lever below its pivot and a point on -the other lever above its pivot. v

21. The combination ofa controller-barrel, a lever for operating it, a bolt carried by IIO the lever for lockin it a bell-crank for operthe bolt, a t umb-lever for'operating the ell-crank, a second thumb-lever, a rod connecting a point'on one thumb-lever below its pivot and a. point on the other lever above its-pivot,'and asprirlg acting, on said rod.

22. Ina controller, the combination of a barrel; a lever for operatingthe same, abolt carried 'byisaid lever 'and'iidaptediltozenga e 1 innoitches tb lockthe-leverga pairof thum levers piv oted on saidleverjand'a connection 1 between the thumb-leversandboltwhereby f either thumb-levermay withdraw the bolt.

1 23. In a controller, the'combination of a body,'two sets of governing contact members positefside'; I j

.125 ,carriedthereby on one side, and reversing contact, members; carried thereby on theop;

24. The combination with tWo sets of contact-fingers, of segments connected together and adapted to engage fingers of one set singly or fingers of both sets simultaneously wherebysaid segments may connect fingers of their own set "or fingers of both sets to cause changes in the circuit.

25. In a controller, the combination with two sets of contact-fingers, of a double set of r segments adapted to engage the contact-finers independently or bridge the connection rom one to the other, and a blow-out coinmon to both sets. I

26. The combination-of two sets of con- 'tact fingers, a contact member adapted to and independent resistances for-the two sets of fingers.

29. In a controller, the combination with two sets of contact-fingers, of a'double set of segments adapted to engage the contact-fingers independently or bridge the connection tion 0 from one to the other, and a divided resist ance connected one part with one set of fingers, and the other part with the other set.

30. The combination with two sets of contact-fingers, of a controller-barrel having a double set of contact-se ments, the segments being ositioned to be rought by the r0ta tion of the barrel into cooperation with the corresponding fingers independently to close circuits or form a bridge from the fingers of on'e'set to those of theother, and individual resistance sections connected respectively with'the two sets of contactfingers.

31. The combination with two sets of co1i tact fingers, of a controller-barrel having a double set of contactse ments, the segments being ositioned'to be rought by the rotai the barrel into cooperation with the corresponding fingers inde endently to close circuits: or form a bridge om the fingers of 4 one set to those of the other.

32. The combination with two sets of contact-fingers, ofa double set of contact-segments positioned tooooperate with the-cor responding fingers independently to close a circuit or to form'a bridge from the fingers of one set to those of the'o'ther.

In testimony whereof I hereunto affix my signature in the presence of two witnesses. THORSTEN VON ZWEIGBERGK. Witnesses:

ALBERT H. BATES, J. B. HULL. 

